--> Dougie
What about that:
1. Cropping, you don't need to see more than that. This put your attention to relation between wave and boys. Also note, that hiding some parts of the wave force your mind to use imagination - wave looks bigger

Also small crop from the bottom, cuts shallow water so it is not that obvious that is shallow
2. Darkening the sky. It start to be more dramatic and suporting for the situaction as well as...
3. ... giving better tonal contrast for the wave. Setting up level for the wave applies as well. Point is to get nice, white foam and better water colour.
4. A bit more saturation for yellows, will pop up rocks and boys
Extra comment here. You have good reflex and it is difficult to get that king of shot but, I recon your DOF selection was a bit unfortunate. Now second plan is blury whereas third is sharp. I would rather go to possible ways:
1. Increase DOF, so everyting in interest area is sharp
2. Or realy decrease with focusing on boys. Possibly close up could work as well.
Well, just suggetion. It is not easy to get good wave
That is all.
Regards,
K.Polak